Improvement in let-off mechanisms



GEORGE BAILEY.

lmproyement in Let-Off Mechanisms.

No. 115,806, Patnted3u ne13,1871.

FFICE GEORGE BAILEY, or PUTNAM, oonnnorrou'r.

IMPROVEMENT IN LET-OFF MECHANISMS.

To all whom it may concern:

Be it known that I, GEORGE BAILEY, of Putnam, in the county of Windhamand State of Connecticut, have invented a new and Im' proved Let-0dApparatus; and I do hereby declare that the following is a full, clear,and exact description thereof, which Will enable others skilled in theart to make and use the same, reference being had to the accompanyingdrawing forming partof this specification.

This invention relates to friction apparatus for the yarn-beams oflooms, to regulate the letting off of the yarn 5 and it consists inimproving the same, as hereinafter fully described, and subsequentlypointed out in the claim.

Figure 1 is a side elevation of the lever and connecting apparatus, anda transverse section of the strap; and Fig. 2 is a side elevation of thestrap and section of the lever.

Similar letters of reference indicate corre spondin g parts.

A is a thin metal strap adapted to spring over the upper half of theyarn-beam, or a friction-collar or disk thereon, to one end of whichstrap zmhook, B, is connected by a ring, 0, said hook being to connectthe strap with the loomframe, or any other fixed support. The other endof said metal strap is connected by a bolt, D, and adjusting thumb-nut,E, with a block, F, fitted on the lever G, so that it can be adjustedtoward or from the end. The end of the lever is to be placed under astud, or any projection from the loom-frame; or it may be engaged with achain or other device attached to and rising up from the floor. The endof the long arm of the lever is provided with a metal or otherattachment, I, having a hole through it vertically for theadjusting-bolt K, and a socket in the upper side for the lower end ofthe coiled spring L to rest in. The bolt K passes loosely through thesaid attachment L, and has a hook, M, at the lower end, which engageswith a chain, N, attached to the floor, and at the top the said bolt isprovided with a thumb-nut, 0, under which is an inverted cup, P,receiving the upper end of the spring L in it. The metal strap A has aleather strap, Q, attached to the inner side by riveting or otherwise,and this strap is covered by a woolen or other cloth, R,()VGI'liLlfiplllg the edges of the leather and metal straps, and rivetedor otherwise secured to the upper side of the metal strap. This leatherand cloth lining imparts an elastic quality to the band, which is veryserviceable in case the beam or collar thereon has any inequality in therim, the said lining contracting or expanding to them, as the case maybe.

By means of the adjusting-screws and nuts and the sliding block, thefriction may be regulated with great exactness, and the adjustments,except the shii'tingof the block F, may be made while the loom is inoperation.

The block F is prevented from sliding along the beam. by set-screws T.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patcut- 1. The strap A Q R, ring O, hook B, screwbolt D, andnut E, combined with block F of the lever G, as and for the purposespecified.

2. The friction mechanism A Q, R B O D E, the lever G, having hook H atone end and socket-piece I at the other, and the spring mechanism K L MN O P, when said instrumentalities are constructed and arrangedtogether, substantially as and for the purpose specified.

GEORGE BAILEY.

Witnesses:

GEORGE T. CLARK, WILLIAM SEATON.

